add translation cache and queue

translation_queue.py

@@ -0,0 +1,71 @@
+import json
+import os
+from typing import List
+
+QUEUE_FILE = "translation_queue.json"
+
+
+def load_queue() -> List[str]:
+    if not os.path.exists(QUEUE_FILE):
+        return []
+    try:
+        with open(QUEUE_FILE, "r", encoding="utf-8") as f:
+            data = json.load(f)
+            return data.get("queue", [])
+    except Exception:
+        return []
+
+
+def save_queue(queue: List[str]):
+    with open(QUEUE_FILE, "w", encoding="utf-8") as f:
+        json.dump({"queue": queue}, f, ensure_ascii=False, indent=2)
+
+
+def add_to_queue(filename: str):
+    queue = load_queue()
+    if filename not in queue:
+        queue.append(filename)
+        save_queue(queue)
+
+
+def remove_from_queue(filename: str):
+    queue = load_queue()
+    if filename in queue:
+        queue.remove(filename)
+        save_queue(queue)
+
+
+def translate_from_queue(start_translation_func):
+    from utils import notify_telegram
+    import threading
+    import time
+
+    queue = load_queue()
+    if not queue:
+        print("[QUEUE] Черга пуста")
+        return
+
+    filename = queue[0]
+    try:
+        print(f"[QUEUE] Спроба перекладу з черги: {filename}")
+        start_translation_func(filename)
+        remove_from_queue(filename)
+        notify_telegram(f"[✅] Файл з черги перекладено: {filename}")
+
+        if load_queue():
+            threading.Timer(3, translate_from_queue, args=(start_translation_func,)).start()
+
+    except Exception as e:
+        error_text = str(e).lower()
+        if (
+            "too many requests" in error_text
+            or "you are allowed to make" in error_text
+            or "5 requests per second" in error_text
+        ):
+            notify_telegram(
+                f"[🛑] Знову ліміт при перекладі з черги. Повтор через 30 хвилин.\nФайл: {filename}"
+            )
+            threading.Timer(1800, translate_from_queue, args=(start_translation_func,)).start()
+        else:
+            notify_telegram(f"[⚠️] Помилка при перекладі з черги: {filename}\n{str(e)}")
+            remove_from_queue(filename)